package com.yellow.web.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.yellow.constant.MessageConstant;
import com.yellow.enity.Result;
import com.yellow.service.MemberService;
import org.apache.http.HttpResponse;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.http.HttpRequest;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        //前台页面需要{months:{2019-11,2019-12},memberCount:{12,20}}
        // Map<String,Object> map =memberService.getMemberReport();
        Map<String, Object> map = new HashMap<>();
        //获取最近12个月的月份列表
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH, -12);//获取前12个月
        List<String> list = new ArrayList<>();
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH, 1);
            list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }
        map.put("months", list);
        //根据月份查询会员数量
        List<Integer> counts = memberService.getMemberByMonths(list);
        map.put("memberCount", counts);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);

    }

    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        /*
        需要的数据
        {
         setmealNames： ['直接访问','邮件营销','联盟广告','视频广告','搜索引擎']，
         setmealCount:{
                {value:335, name:'直接访问'},
                {value:310, name:'邮件营销'},
                {value:234, name:'联盟广告'},
                {value:135, name:'视频广告'},
                {value:1548, name:'搜索引擎'}
             }
         }
        */
        HashMap<String, Object> map = new HashMap<>();
        List<String> setmeals = memberService.findAllSetMealName();

        List<Map<String, String>> counts = memberService.findAllSetMealCounts(setmeals);
        map.put("setmealNames", setmeals);
        map.put("setmealCount", counts);
        return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);

    }

    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map map = memberService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }

    }

    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map result = memberService.getBusinessReportData();
            //获取result中的数据
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer)
                    result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer)
                    result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer)
                    result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer)
                    result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer)
                    result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer)
                    result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer)
                    result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //使用POI向已有的excel 填充数据

            //获取excel模板的绝对路径
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //获取表
            XSSFSheet sheet = excel.getSheetAt(0);
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期
            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数
            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数
            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数
            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数
            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            //热门套餐
            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            //使用response向页面输出流
            ServletOutputStream out = response.getOutputStream();
            //指定头信息
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            excel.write(out);
            out.flush();
            out.close();
            excel.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL, null);
        }
    }
}
